2581880 has 32 divisors (see below), whose sum is σ = 6639840. Its totient is φ = 885120.

The previous prime is 2581877. The next prime is 2581907. The reversal of 2581880 is 881852.

It is a super-2 number, since 2×2581880² = 13332208668800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4331 + ... + 4890.

It is an arithmetic number, because the mean of its divisors is an integer number (207495).

2^2581880 is an apocalyptic number.

2581880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2581880 is an abundant number, since it is smaller than the sum of its proper divisors (4057960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2581880 is a wasteful number, since it uses less digits than its factorization.

2581880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239 (or 9235 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 2581880 is about 1606.8229522881. The cubic root of 2581880 is about 137.1867026640.

The spelling of 2581880 in words is "two million, five hundred eighty-one thousand, eight hundred eighty".